Quote Originally Posted by ci2kla View Post
Not likely that a Q9550 will hit a wall @ 471...sorry I have to disagree with you
With all GTLs on auto IBT can pass 10 tests with 1.2v, 4003Mhz.
Apart from CPU GTLs, NB GTLs becomes more important as well.
For my example, E8400 need +20mv to get a certain FSB run smooth. But for Q9550 w/ RE, +70mv for vNB GTL is the sweet spot, +60 / +80 setting or add more vtt will cause IBT calculation errors that's my finding so far. Probably now the vtt is higher then vCore (1.206v VS 1.192~1.2v) maybe that explained the problem but I'm not sure...need more time and testing to find out. Will post more soon
You may disagree, but a FSB wall can mean a multitude of things. It's usually a wall that's in place due to clock signals skewing too far apart. If you have the flexibility of bios options to work around then the wall will be higher. All depends on how good you are fine tuning the settings and how fine they can be tuned. RE has a lot of flexibility so if you are stuck at 471 then it's more the fault of the guy playing with the settings than the chip itself

I hit a wall on my Q6600 at 482mhz on RF which isn't a static wall, but without skew adjustment to get around the wall it might as well be a hard wall